Corp-to-Corp vs. W-2 Through a Staffing Agency: Which Should Freelance Consultants Choose?

Published: August 25, 2026 · Reading time: 11 min

TL;DR: At an equal fully-loaded rate, the raw payroll-tax math is almost a wash — W-2 nets $145,838/year, corp-to-corp nets $145,980/year on identical $85/hr, 2,000-hour work, a $141 difference either way. The real asymmetry isn't tax rate, it's structural: a sole-prop C2C contractor is excluded from state unemployment insurance by the federal definition of "employment" (26 U.S.C. §3306(c)), while a W-2 employee permanently cannot deduct unreimbursed job expenses — a 2017 suspension (26 U.S.C. §67(h)) that the One Big Beautiful Bill Act made indefinite as of July 4, 2025 — a deduction the C2C contractor still takes on Schedule C. The 2026 Social Security wage base is $184,500; self-employment tax is 15.3% on 92.35% of net earnings. Pick based on who should carry the risk of the contract ending, not the hourly number on the offer letter.

A staffing agency places you on a contract and asks how you want to be paid: W-2 on their payroll, or corp-to-corp through your own LLC invoicing them directly. It reads like a paperwork checkbox. It isn't — it decides who absorbs the risk if the contract ends early, who can deduct what, and whether a state safety net exists for you at all between assignments.

The Real Question Isn't the Rate — It's Who Absorbs the Risk

Both arrangements can pay you for the exact same work, at the exact same client, on the exact same day. The difference is entirely about the relationship the money passes through. A W-2 arrangement makes the staffing agency your employer: they withhold and remit payroll taxes, they pay unemployment tax on your wages, and — in most states — they carry workers' compensation coverage that extends to you. A corp-to-corp arrangement makes your LLC a vendor: no employer exists in the transaction at all, so none of that employer-side infrastructure is built for you. You become both the worker and, functionally, the business absorbing every risk an employer would otherwise carry.

How Each Arrangement Actually Works

W-2 Through a Staffing Agency

The agency is legally your employer. They withhold federal and state income tax and your half of FICA (7.65%: 6.2% Social Security, 1.45% Medicare) from every paycheck, and separately pay the employer's matching 7.65%, plus federal and state unemployment tax, out of their own budget. Depending on the agency, you may also get access to a group health plan, a 401(k), or paid time off — though "benefits-lite" bench arrangements are common at smaller staffing firms.

Corp-to-Corp (C2C)

Your LLC bills the agency (or the client directly) for services rendered, the same as any vendor invoice. No tax is withheld from the payment — the full invoiced amount arrives, and you owe self-employment tax on your net profit when you file. There is no employer in this transaction, which is exactly why none of the employer-funded protections above exist for you here.

The Payroll-Tax Math Is (Almost) a Wash — Worked Example

Assume a staffing agency has an $85/hour fully-loaded budget for a role — the maximum it's willing to spend either way — and the contractor works 2,000 hours in the year (40 hrs/week × 50 weeks). Under the W-2 path, the agency backs its 7.65% employer FICA match out of that budget to find the wage it can afford; under C2C, the full $85/hour is invoiced and the contractor owes the full 15.3% self-employment tax themselves.

The two paths land $141 apart over a full year — essentially a rounding error relative to $170,000 of work, because the agency's 7.65% employer match and your 15.3% self-employment tax (which is really the same employer-and-employee FICA split, just paid by one person instead of two) are close to mirror images of each other. Both scenarios also stay comfortably under the 2026 Social Security wage base of $184,500 ($157,919 in W-2 wages; $156,995 in C2C net earnings after the 92.35% multiplier), so neither one crosses into the zero-Social-Security-tax territory that would change this math mid-year.

The conclusion that matters: if you're choosing between these two offers based on "which one nets more after tax," you're optimizing a number that barely moves. The decision that actually changes your outcome is everything payroll tax doesn't touch — unemployment insurance, liability coverage, and which deductions you're allowed to take at all.

What You Actually Give Up as a C2C Contractor

No Unemployment Insurance When the Contract Ends

This is the asymmetry most contractors don't find out about until they need it — and it's specific to the disregarded-entity, sole-prop LLC this guide's worked example assumes. Federal law defines "employment," for unemployment tax purposes, as service performed by an employee for the person employing them (26 U.S.C. §3306(c)) — the same employer-employee relationship test used throughout the payroll tax code. A corp-to-corp arrangement built on a disregarded-entity LLC is designed specifically to avoid creating that relationship: your LLC is a vendor, not an employee, so no unemployment tax was ever paid into the system on your behalf and no wage record accrues toward a claim. This isn't a corner case Congress overlooked — it's why the CARES Act had to create Pandemic Unemployment Assistance (§2102) as a wholly separate, temporary program explicitly for "individuals who do not qualify for regular unemployment compensation," naming self-employed workers and independent contractors as the population it was built to reach. That program expired in September 2021. There is no standing federal replacement. If a sole-prop C2C contract ends without notice, the contractor's own LLC is the only safety net.

An S-corp C2C entity is a different case: an owner-employee taking a W-2 salary from their own S-corp has UI tax paid on that salary and generally accrues a wage record, the same as any other employee — §3306(c)'s test is satisfied because the S-corp, not the client, is the employer of record. State rules on corporate-officer UI eligibility (and any officer-exclusion elections) vary, so this isn't automatic, but it's a materially different answer than the sole-prop case above.

A W-2 employee of the same staffing agency has unemployment tax paid on every paycheck for the life of the assignment and can file a claim under ordinary state rules the moment the contract ends — the exact protection the C2C structure was built to route around.

No Automatic Workers' Comp or Liability Coverage

A staffing agency's workers' comp policy generally covers its W-2 employees on assignment; it typically does not extend to a corp-to-corp vendor's LLC, whose owner is treated as running their own business rather than as an insured worker. Many client contracts explicitly require a C2C vendor to carry its own general liability and, in some cases, its own workers' comp or errors-and-omissions policy before work can start — a real, recurring cost that a W-2 arrangement never asks the worker to carry personally.

You Are the "Employer" Now — Quarterly Taxes and Admin

A C2C contractor owes quarterly estimated tax payments, since no one is withholding for them, and carries every piece of administrative overhead an employer normally absorbs: tracking deductible expenses, maintaining the LLC's separate records, and filing a Schedule C alongside the personal return. None of this is disqualifying — it's the same overhead every sole proprietor already carries — but it's real time and risk a W-2 arrangement hands to the agency instead.

What the W-2 Path Permanently Gives Up (Since OBBBA)

Unreimbursed Employee Expenses: Now Permanently Non-Deductible

The flip side of the C2C admin burden is that it buys deductions a W-2 employee categorically cannot take. The 2017 tax law suspended the miscellaneous itemized deduction for unreimbursed employee business expenses — home office, mileage between client sites, a personally purchased laptop, certification fees — for tax years beginning after December 31, 2017 (26 U.S.C. §67(h)). That suspension originally had a sunset written into the statute for tax years beginning before 2026. The One Big Beautiful Bill Act, enacted July 4, 2025, struck that end date, so the suspension now runs indefinitely rather than lapsing after 2025. A W-2 consultant who buys their own equipment or drives to a client site gets zero deduction for it unless the staffing agency formally reimburses them under an accountable plan. A C2C contractor deducts the identical cost directly on Schedule C, no reimbursement required.

The Deduction and QBI Upside for C2C

Beyond ordinary Schedule C expenses, a C2C LLC's profit can also qualify for the Section 199A Qualified Business Income deduction — an option a W-2 wage never gets, because QBI only applies to pass-through business income, not wages. Software development, IT consulting, and most technical contracting are non-SSTB trades under §199A, so the deduction isn't phased out at high income the way it is for law, accounting, or financial consulting. Using this guide's own numbers: $170,000 of gross C2C revenue, less the deductible half of self-employment tax ($12,010), gives a simplified QBI base of roughly $157,990. Taxable income (QBI base less the 2026 single standard deduction of $16,100, Rev. Proc. 2025-32) comes to roughly $141,890 — comfortably under the 2026 non-SSTB threshold of $201,750 for single filers, so this LLC isn't phased out and qualifies with no W-2-wage or property test. But §199A(a) caps the deduction at 20% of the lesser of the QBI base or taxable income: 20% of $157,990 is $31,598, while 20% of $141,890 taxable income is only $28,378 — the binding, smaller figure, and the one that actually lands on Form 8995. Treating $31,598 as the deduction is a common overstatement (here, by $3,220) that ignores this cap; the true QBI deduction shrinks further still once self-employed health insurance or retirement-plan deductions reduce taxable income below the QBI base.

A Decision Framework

• Contract likely to run its full term, agency offers real benefits, low tolerance for gaps in income: the W-2 path's unemployment-insurance backstop and benefits are worth more than the marginal deduction access you'd gain from C2C.
• Established consulting practice, multiple concurrent clients, real business expenses to deduct, and enough of a cash buffer to self-insure the gap between contracts: C2C's deduction access and full-invoice rate typically win, provided the rate genuinely reflects the agency's saved employer-side tax rather than just being priced the same as the W-2 wage.
• Rate is identical (or only marginally higher) between the two offers: that's a red flag, not a wash — it means the agency is keeping the 7.65%+ it would have owed as an employer instead of passing it to you, and you're taking on unemployment and liability risk for no added compensation.
• Considering an S-corp instead of a sole-prop LLC for the C2C entity: worth evaluating once net C2C profit clears the mid-six-figures, where the self-employment-tax savings from paying a reasonable salary plus distributions outweighs the added payroll and filing overhead — see the S-corp guide linked below. It also changes the unemployment-insurance answer above: a salaried owner-employee of their own S-corp generally accrues UI eligibility on that salary, unlike the sole-prop LLC this guide's worked example assumes.

Frequently Asked Questions

What does corp-to-corp (C2C) mean for a freelance consultant?

Corp-to-corp means your own business entity — typically a single-member LLC — invoices the staffing agency or client's business directly, instead of you being paid as their W-2 employee. No payroll taxes are withheld from the payment because there's no employer-employee relationship: your LLC is a vendor being paid for services, not a worker being paid wages. You then owe self-employment tax (15.3% on 92.35% of net earnings) on the income yourself, the same as any other 1099 sole proprietor, and you're responsible for your own quarterly estimated taxes, business insurance, and benefits.

Will I get unemployment benefits if my corp-to-corp contract ends?

Almost certainly not, under the regular state unemployment insurance system. Federal law defines 'employment' for unemployment tax purposes as service performed by an employee for the person employing them (26 U.S.C. §3306(c)) — a C2C arrangement has no employer-employee relationship by design, so no unemployment tax was ever paid on those earnings and no wage record was built toward a claim. This isn't a hypothetical gap: Congress had to create a temporary, separate program — Pandemic Unemployment Assistance under §2102 of the CARES Act — specifically because self-employed workers and independent contractors don't qualify for regular UI. That program expired in September 2021, and there is no standing federal replacement for it. A W-2 employee of the staffing agency, by contrast, has UI taxes paid on their wages the entire time and can file a claim when the assignment ends.

Can I deduct business expenses if I take the W-2 offer from a staffing agency instead?

No — and this is now a permanent feature of the tax code, not a temporary one. The 2017 tax law suspended the miscellaneous itemized deduction for unreimbursed employee business expenses (26 U.S.C. §67(h)) for tax years after 2017, originally through 2025. The One Big Beautiful Bill Act, enacted July 4, 2025, struck that 2025 end date entirely, so the suspension now applies indefinitely, absent further legislation. A W-2 consultant who buys their own laptop, pays for certifications, or drives between client sites gets no deduction for any of it unless the agency reimburses them. A corp-to-corp contractor deducts the same costs directly against LLC income on Schedule C.

Is corp-to-corp actually cheaper for the client, and does that show up in my rate?

It's cheaper for the agency in the sense that they owe no employer-side payroll tax, unemployment tax, or workers' comp premium on a C2C payment — but a well-run agency prices that saving into a higher C2C bill rate rather than pocketing it, precisely because the contractor now has to cover that cost themselves through self-employment tax. Run the numbers at an equal fully-loaded budget and the two paths land within roughly $141 a year of each other on payroll tax alone (see the worked example below) — the rate difference you're quoted is doing real work, not padding one side's margin, as long as the C2C rate reflects the full 7.65%+ the agency would otherwise have paid.

Do I need an LLC to do corp-to-corp work, and does it need to be an S-corp?

Most agencies require you to invoice through a formal business entity — typically an LLC — rather than as an individual, partly for their own liability protection and partly because 'corp-to-corp' by definition means entity-to-entity. A single-member LLC taxed as a disregarded entity (reporting on your personal Schedule C, same as a sole proprietor) is the simplest structure and is what this guide's worked example assumes. An S-corp election is a separate, later decision that can reduce self-employment tax on profit above a reasonable salary, but it adds payroll administration, a separate tax return, and generally isn't worth the overhead until net C2C profit is well above six figures — see the S-corp election guide linked below before making that call.

Authoritative References

• 26 U.S.C. §3306 — Definitions (subsection (c): "employment")
• 26 U.S.C. §67 — 2-percent floor on miscellaneous itemized deductions (subsection (h): suspension, as amended by Pub. L. 119-21, July 4, 2025)
• 26 U.S.C. §1402 — Definitions (net earnings from self-employment; the (a)(12) adjustment IRS Schedule SE restates as the 92.35% computation)
• Social Security Administration — Contribution and Benefit Base: 2026 figure of $184,500
• U.S. Department of Labor — Pandemic Unemployment Assistance program guidance (CARES Act §2102)

Related reading: Self-Employment Tax Explained · Self-Employment Tax When You Also Have a W-2 Job · Hiring a W-2 Employee vs. a 1099 Contractor · The QBI Deduction for Freelancers · The S-Corp Election for Freelancers

Every Contract, Tracked the Same Way

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This guide is general education for U.S. freelance consultants and contractors covering the 2026 tax year. It is not personalized tax, legal, or insurance advice. Unemployment insurance eligibility is governed by state law and varies by state; workers' compensation and liability insurance requirements are set by state law and by individual client contracts. Confirm your specific situation with a CPA, an employment attorney, or your state's unemployment insurance agency before choosing between these arrangements.